Russell Brand has revealed his mother was left with life threatening injuries after being the victim of a hit and run.

The comedian, 42, announced the his ReBirth tour's postponement and cancellation on Twitter. Barbara, 71, was rushed to hospital after Thursday's smash which left dad-of-one Russell's Audi shattered.

In a video released this afternoon Russell explained his mother sustained 'polytraumatic injuries' which he said were numerous and life-threatening.

He said: "I can't imagine performing at the moment. I feel too sad and too connected to hthis.

"I apologise but obviously it's circumstances beyond my control."

Russell opened up to his fans about what happened (Image: Twitter)

He explained the very sad reasons to fans on Twitter (Image: Twitter)

Russell continued in another video that his mother had only finished chemotherapy a month ago, so she was in a 'vulnerable' state.

He added: "The man who was driving was a friend of mine.

"What I suppose I would like to say is how I am reminded, as I have been many times across my life is the important and significance of the NHS who have already saver her life on six occasions, my mum has had cancer six times."

Russell and Barbara at the premiere of Rock of Ages in London in 2012 (Image: Getty Images Europe)

The nine remaining dates for the tour have been cancelled and tickets would be refunded, or the gigs may be rescheduled.